A shaped charge directional blasting device and construction method

Abstract

The embodiment of the present application discloses a shaped charge directional blasting device and construction method, and relates to the technical field of rock tunnel blasting. The present application is invented to solve the problem that the position and blasting direction of the shaped charge cannot be accurately controlled in actual construction, which leads to the problem that the blasting shape cannot be accurately controlled. The shaped charge directional blasting device comprises: a positioning cylinder, which is arranged in a blast hole to determine that the position of the directional cylinder and the shaped charge is in the center of the blast hole; a directional cylinder arranged in the inner cylinder of the positioning cylinder; a fixing part is arranged on the inner wall of the directional cylinder, and the fixing part is used for fixing the shaped charge; an angle reference mark is arranged on the positioning cylinder; angle marks are arranged at both ends of the directional cylinder; after the directional cylinder is pushed into the positioning cylinder, the angle marks are aligned with the angle reference mark, the angle of the directional cylinder is adjusted, and the blasting direction is determined. The present application is suitable for the scene of accurate directional blasting.

Description

Technical Field

[0001] This invention relates to the field of rock tunnel blasting technology, and in particular to a directional blasting device and construction method for shaped charge explosives. Background Technology

[0002] Currently, with increasingly sophisticated blasting techniques in rock tunnel excavation, medium-deep hole blasting technology is being applied more and more frequently. Increased borehole depth inevitably leads to a larger charge, making it impossible to guarantee the detonation direction of the explosive charge within the same borehole. To achieve the desired precise blasting effect, a good positioning device and an accurate orientation device are needed. Current blasting methods cannot guarantee that the explosive charge is centered within the borehole, cannot control the detonation direction, and cannot ensure consistency in the detonation direction of preceding and following charges. Therefore, precise blasting cannot achieve the ideal blasting conditions and reduce the need for subsequent excavation work.

[0003] Therefore, there is an urgent need for a solution that can address the problem of the inability to precisely control the position and blasting direction of shaped charge charges during actual construction, which leads to an inability to precisely control the blasting shape, and provide a strong guarantee for achieving precise blasting of coal mine rock tunnels. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a directional blasting device and construction method for shaped charge explosives, which can solve the problem that the position and blasting direction of shaped charge explosives cannot be accurately controlled in actual construction, resulting in the inaccurate control of the blasting shape, thereby improving the construction speed and quality of blasting boreholes and improving the blasting rock breaking effect.

[0005] In a first aspect, the directional blasting device for shaped charge provided in the embodiments of the present invention includes: a positioning cylinder, used to be disposed in a blast hole to determine the position of the directional cylinder and the shaped charge at the center of the blast hole; a directional cylinder disposed in the inner cylinder of the positioning cylinder; a fixing part provided on the inner wall of the directional cylinder, the fixing part being used to fix the shaped charge; an angle reference mark provided on the positioning cylinder; angle markers provided at both ends of the directional cylinder; the angle markers being used to align the angle markers with the angle reference mark after the directional cylinder is pushed into the positioning cylinder, adjusting the angle of the directional cylinder to determine the blasting direction; or, an angle marker provided on the positioning cylinder; an angle reference mark provided on the directional cylinder; the angle reference mark being used to align the angle markers with the angle reference mark after the directional cylinder is pushed into the positioning cylinder, adjusting the angle of the directional cylinder to determine the blasting direction.

[0006] Optionally, the positioning cylinder further includes: a plurality of first grooves, the plurality of first grooves being disposed on the outer wall of the positioning cylinder and evenly arranged along the circumferential direction; and a plurality of first beads, each of the first beads being correspondingly engaged in the first groove, and the first bead in the first groove being able to rotate relative to the first groove.

[0007] Optionally, the positioning cylinder further includes a first elastic element, which is disposed in the first groove and at least partially below the first bead, for making the first bead movable in the radial direction of the positioning cylinder.

[0008] Optionally, the first groove is a hemispherical groove; the number of the first grooves is four.

[0009] Optionally, the positioning cylinder includes multiple positioning segments; the multiple positioning segments include a first positioning segment and a second positioning segment; the first positioning segment includes a first positioning body, and a first connecting portion is provided at a first end of the first positioning body; the second positioning segment includes a second positioning body, and a second connecting portion is provided at a second end of the second positioning body; the first connecting portion and the second connecting portion are connected.

[0010] Optionally, the first connecting part is a first annular body with an external thread on its outer edge; the second connecting part is a second annular body with an internal thread on its inner edge; and the external thread is screwed onto the internal thread.

[0011] Optionally, the thickness of the first annular body is half the thickness of the middle position of the first positioning body; the thickness of the second annular body is half the thickness of the middle position of the second positioning body.

[0012] Optionally, the directional cylinder further includes: a plurality of second grooves, the plurality of second grooves being disposed on the outer wall of the directional cylinder and evenly arranged along the circumferential direction; and a plurality of second beads, each of the second beads being correspondingly engaged in the second groove, and the second beads in the second groove being able to rotate relative to the second groove.

[0013] Optionally, the plurality of second beads includes a first group of beads, a second group of beads, a third group of beads, and a fourth group of beads. The first group of beads includes a first bead and a second bead spaced apart along the axis of the directional cylinder. The second group of beads includes a third bead and a fourth bead spaced apart along the axis of the directional cylinder. The third group of beads includes a fifth bead and a sixth bead spaced apart along the axis of the directional cylinder. The fourth group of beads includes a seventh bead and an eighth bead spaced apart along the axis of the directional cylinder. The first, third, fifth, and seventh beads are located on the first cross-section of the directional cylinder and are evenly arranged circumferentially. The second, fourth, sixth, and eighth beads are located on the second cross-section of the directional cylinder and are evenly arranged circumferentially. The inner wall of the positioning cylinder is provided with a first bead in the axial direction. The positioning cylinder has a first axial guide rail, a second axial guide rail, a third axial guide rail, and a fourth axial guide rail. Multiple circumferential guide rails are provided along the inner wall of the positioning cylinder in the circumferential direction, including a first circumferential guide rail and a second circumferential guide rail. When the positioning cylinder is pushed into the positioning cylinder, the first group of beads can be pushed in along the first axial guide rail, the second group of beads can be pushed in along the second axial guide rail, the third group of beads can be pushed in along the third axial guide rail, and the fourth group of beads can be pushed in along the fourth axial guide rail. When adjusting the angle of the positioning cylinder, the first, third, fifth, and seventh beads can rotate along the first circumferential guide rail; the second, fourth, sixth, and eighth beads can rotate along the second circumferential guide rail.

[0014] Optionally, the directional cylinder further includes a second elastic member disposed within the second groove and at least partially below the second bead, for making the second bead movable in the radial direction of the directional cylinder.

[0015] Optionally, the second groove is a hemispherical groove; the number of the second grooves is four.

[0016] Optionally, the directional cylinder includes multiple directional segments; the multiple directional segments include a first directional segment and a second directional segment; the first directional segment includes a first directional body, and a third connecting portion is provided at a first end of the first directional body; the second directional segment includes a second directional body, and a fourth connecting portion is provided at a second end of the second directional body; the third connecting portion and the fourth connecting portion are connected.

[0017] Optionally, the third connecting part is a third annular body with an external thread on its outer edge; the fourth connecting part is a fourth annular body with an internal thread on its inner edge; and the external thread is screwed onto the internal thread.

[0018] Optionally, the thickness of the third annular body is half the thickness of the middle position of the first directional body; the thickness of the fourth annular body is half the thickness of the middle position of the second directional body.

[0019] Optionally, in the directional blasting device for shaped charge, a reference line is provided on the outer wall side of each directional segment in the axial direction, and the reference line on each of the plurality of directional segments is on a straight line.

[0020] Optionally, the fixing part is a wedge-shaped protrusion; the number of wedge-shaped protrusions is multiple; at least a portion of the multiple wedge-shaped protrusions corresponds to the position of the cut of the energy-concentrating drug pack.

[0021] Optionally, the angle marker includes multiple marking lines evenly arranged along the circumference, with the included angle between two adjacent marking lines being five degrees; the multiple marking lines include four first marking lines spaced ninety degrees apart from each other, and the color of the first marking lines is a predetermined color.

[0022] Secondly, the directional blasting method for shaped charge provided in this embodiment of the invention includes: pushing a positioning cylinder into a blast hole; pushing a shaped charge into a directional cylinder and fixing the shaped charge with a fixing part of the directional cylinder; pushing the directional cylinder containing the shaped charge into the positioning cylinder; rotating the directional cylinder and adjusting its angle according to the angle mark on the directional cylinder and the angle reference mark on the positioning cylinder to determine the blasting direction; or rotating the directional cylinder and adjusting its angle according to the angle reference mark on the directional cylinder and the angle mark on the positioning cylinder to determine the blasting direction.

[0023] Optionally, in the directional blasting method for shaped charge explosives, a first axial guide rail, a second axial guide rail, a third axial guide rail, and a fourth axial guide rail are provided on the inner wall of the directional cylinder along the axial direction of the directional cylinder; a first circumferential guide rail and a second circumferential guide rail are provided on the inner wall of the directional cylinder in the circumferential direction; the step of pushing the directional cylinder containing the shaped charge explosive into the positioning cylinder includes: aligning the first set of beads of the directional cylinder with the first axial guide rail of the positioning cylinder, aligning the second set of beads of the directional cylinder with the second axial guide rail of the positioning cylinder, and aligning the third set of beads of the directional cylinder with... The third axis guide rail of the positioning cylinder, the fourth set of beads of the directional cylinder aligned with the fourth axis guide rail of the positioning cylinder, pushes the directional cylinder so that the first set of beads of the directional cylinder rolls along the first axis guide rail of the positioning cylinder, the second set of beads of the directional cylinder rolls along the second axis guide rail of the positioning cylinder, the third set of beads of the directional cylinder rolls along the third axis guide rail of the positioning cylinder, and the fourth set of beads of the directional cylinder rolls along the fourth axis guide rail of the positioning cylinder, so that the directional cylinder containing the energy-concentrating explosive pack is pushed into the positioning cylinder; wherein, the first set of beads includes those along the fixed axis guide rail. The first and second sets of beads are spaced apart along the axial direction of the outer wall of the directional cylinder. The second set of beads includes a third and a fourth set of beads spaced apart along the axial direction of the outer wall of the directional cylinder. The third set of beads includes a fifth and a sixth set of beads spaced apart along the axial direction of the outer wall of the directional cylinder. The fourth set of beads includes a seventh and an eighth set of beads spaced apart along the axial direction of the outer wall of the directional cylinder. The first, third, fifth, and seventh beads are located on the first cross-section of the directional cylinder and are evenly arranged circumferentially. The second, fourth, sixth, and eighth beads are located on the second cross-section of the directional cylinder. The beads are evenly arranged on the surface along the circumference. Rotating the directional cylinder includes: when the first, third, fifth, and seventh beads are opposite to the first circumferential guide rail, and the second, fourth, sixth, and eighth beads are opposite to the second circumferential guide rail, rotating the directional cylinder so that the first, third, fifth, and seventh beads roll along the first circumferential guide rail; and the second, fourth, sixth, and eighth beads roll along the second circumferential guide rail.

[0024] Optionally, the positioning cylinder includes multiple positioning segments; before pushing the positioning cylinder into the borehole, the method further includes: assembling multiple positioning segments; assembling multiple positioning segments includes: determining the required number of positioning segments according to the number of shaped charge packages, and connecting each positioning segment through the connecting part of the positioning segments.

[0025] Optionally, the directional cylinder includes multiple directional segments; before pushing the shaped charge into the directional cylinder, the method further includes: assembling multiple directional segments; assembling multiple directional segments includes: determining the required number of directional segments according to the number of shaped charge packets, and connecting each directional segment through a connecting portion of the directional segments.

[0026] Optionally, connecting each of the directional segments through the connecting portion of the directional segments includes: connecting each of the directional segments through the connecting portion of the directional segments, and aligning the reference lines on each of the plurality of directional segments on a straight line.

[0027] Optionally, the fixing part is a wedge-shaped protrusion; fixing the shaped charge with the fixing part of the directional cylinder includes: using at least a portion of the protrusions among the plurality of wedge-shaped protrusions to wedge the cut of the shaped charge to fix the shaped charge.

[0028] The directional blasting device and construction method for shaped charge provided in this invention have a positioning cylinder that can be installed in the blast hole to determine the position of the directional cylinder and the shaped charge at the center of the blast hole; the directional cylinder can be installed in the inner cylinder of the positioning cylinder; a fixing part is provided on the inner wall of the directional cylinder for fixing the shaped charge; an angle reference mark is provided on the positioning cylinder; angle markers are provided at both ends of the directional cylinder; the angle markers are used to align the angle markers with the angle reference mark after the directional cylinder is pushed into the positioning cylinder, and adjust the angle of the directional cylinder to determine the blasting direction; or, an angle marker is provided on the positioning cylinder; an angle reference mark is provided on the directional cylinder; the angle reference mark is used to align the angle markers with the angle reference mark after the directional cylinder is pushed into the positioning cylinder, and adjust the angle of the directional cylinder to determine the blasting direction. Because the positioning cylinder can position the shaped charge at the center of the borehole, and by adjusting the angle of the positioning cylinder in conjunction with the angle marker and angle reference mark, the blasting direction of the shaped charge can be determined, thereby controlling the blasting direction of the charge, achieving precise blasting shape, improving the construction speed and quality of blasting boreholes, and improving the blasting rock breaking effect. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of a directional blasting device for shaped charge provided in an embodiment of the present invention;

[0031] Figure 2 Another structural schematic diagram of the directional detonation device for shaped charge provided in the embodiments of the present invention;

[0032] Figure 3 A cross-sectional schematic diagram of the positioning cylinder provided for an embodiment of the present invention;

[0033] Figure 4 A side view of the directional cylinder provided for an embodiment of the present invention;

[0034] Figure 5 A cross-sectional schematic diagram of the axial guide rail of the directional cylinder provided for an embodiment of the present invention;

[0035] Figure 6 A cross-sectional schematic diagram of the circumferential guide rail of the positioning cylinder provided for an embodiment of the present invention;

[0036] Figure 7 A cross-sectional schematic diagram of the circumferential guide rail of the positioning cylinder provided for an embodiment of the present invention;

[0037] Figure 8 A cross-sectional schematic diagram of the positioning cylinder provided for an embodiment of the present invention;

[0038] Figure 9 A cross-sectional schematic diagram of the directional cylinder provided for an embodiment of the present invention;

[0039] Figure 10 This is a flowchart illustrating the directional blasting method for shaped charge explosives provided in an embodiment of the present invention. Detailed Implementation

[0040] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0041] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] Example 1

[0043] To address the challenge of precisely controlling the position and blasting direction of shaped charge charges during actual construction, which leads to inconsistent blasting shapes, embodiments of this invention provide a directional blasting device for shaped charge charges. (See attached diagram.) Figure 1 and Figure 2 As shown, Figure 1This is a schematic diagram of a directional blasting device for a shaped charge provided in an embodiment of the present invention. The directional blasting device may include: a positioning cylinder 1, used to be disposed in a borehole to determine the positions of a directional cylinder 2 and the shaped charge at the center of the borehole; a directional cylinder 2, disposed within the inner cylinder of the positioning cylinder 1; a fixing part provided on the inner wall of the directional cylinder 2 for fixing the shaped charge; an angle reference mark provided on the positioning cylinder 1; and angle markers provided at both ends of the directional cylinder 2. The angle markers are used to align the angle markers with the angle reference mark after the directional cylinder 2 is pushed into the positioning cylinder 1, adjusting the angle of the directional cylinder 2 to determine the blasting direction; or, see [reference to previous section]. Figure 2 As shown, Figure 2 Another structural schematic diagram of the directional blasting device for shaped charge provided in an embodiment of the present invention is shown. An angle mark is provided on the positioning cylinder 1; an angle reference mark is provided on the directional cylinder 2; the angle reference mark is used to align the angle mark with the angle reference mark after the directional cylinder 2 is pushed into the positioning cylinder, thereby adjusting the angle of the directional cylinder 2 to determine the blasting direction.

[0044] Specifically, the angle reference mark can be an angle reference line of a predetermined color. When the angle mark is set on the directional cylinder, the angle reference line can be set at both ends of the positioning cylinder; when the angle mark is set on the positioning cylinder, the angle reference line can be set at both ends of the directional cylinder. After the directional cylinder is pushed into the positioning cylinder, the first marking line of the zero-degree position of the angle mark can be aligned with the angle reference line first, the positioning cylinder can be kept stationary, and the directional cylinder can be rotated to adjust the angle.

[0045] For example, when fixing the shaped charge to the fixing part, the cut position of the shaped charge is aligned with the wedge-shaped protrusion of the fixing part. When adjusting the angle of the directional cylinder, if the blast hole is in the semi-circular arch position of the roadway, the center position of the blast hole and the predetermined position of contact with the semi-circular arch form a first contact point. The first contact point and the center of the semi-circular arch are connected to form a first straight line. When the first straight line and the tangent of the first contact point form a 90-degree line, a first tangent is formed. The angle of the directional cylinder is adjusted to a position where the shaped charge cut direction is parallel to the first tangent. If the blast hole is in the vertical wall position of the roadway, the angle of the directional cylinder is adjusted to a position where the shaped charge cut direction is parallel to the vertical direction of the roadway.

[0046] See Figure 3 As shown, Figure 3The diagram shows a cross-sectional view of the positioning cylinder provided in an embodiment of the present invention. In order to enable the positioning cylinder to be pushed into the borehole when the borehole is uneven, in some embodiments, the positioning cylinder 1 may further include: a plurality of first grooves 11, which are disposed on the outer wall of the positioning cylinder 1 and are evenly arranged in the circumferential direction; a plurality of first beads 12, each of which is correspondingly engaged in the first groove 11, and the first bead 12 in the first groove 11 can rotate relative to the first groove 11.

[0047] Specifically, the multiple first grooves can be the same in shape and size, the multiple first beads are spherical in shape, and the material can be a non-toxic plastic of predetermined strength.

[0048] To enable the first bead to extend and retract, in some embodiments, the positioning cylinder 1 may further include a first elastic element disposed within the first groove 11 and at least partially below the first bead 12, for allowing the first bead 12 to move radially within the positioning cylinder 1. The first elastic element allows the first bead to extend and retract to a certain extent, thereby enabling the positioning cylinder to be pushed into the borehole even when the borehole is uneven.

[0049] Specifically, after being squeezed by the borehole, the first bead on the positioning cylinder begins to rotate freely, squeezing the first elastic element. The first elastic element presses the bead against the side wall of the borehole. Because the first elastic element is elastic, the first bead can expand and contract in the radial direction, thereby smoothly pushing the positioning cylinder into the borehole. The first elastic element can be a spring sheet, which can be rectangular, trapezoidal, triangular, segmented, or irregular in shape. The spring sheet can be made of flat steel strips of grades such as phosphor bronze, tin bronze, 65Mn, 55Si2Mn, 60Si2MnA, 55SiMnVB, 55SiMnMoV, 60CrMn, 60CrMnB, 302, and 316.

[0050] The material and shape of the second elastic element in the groove of the directional cylinder can be the same as the first elastic element, and its working principle is similar to that of the first elastic element on the positioning cylinder. The working principle of the second elastic element on the directional cylinder will not be described in detail here.

[0051] In some embodiments, the first groove 11 may be a hemispherical groove; the number of the first grooves 11 may be four. The four first grooves are evenly distributed along the circumference of the positioning cylinder.

[0052] It is understandable that each first groove 11 contains a first bead 12, and the number of first grooves 11 can be two, three, or more than four.

[0053] Similar to the structure of the positioning cylinder, the directional cylinder is also provided with grooves, beads, and elastic elements.

[0054] See Figure 4 As shown, Figure 4 The side view of the directional cylinder provided in the embodiment of the present invention is shown below. In order to enable the directional cylinder to be smoothly pushed into the positioning cylinder, in some embodiments, the directional cylinder may further include: a plurality of second grooves 21, the plurality of second grooves 21 being disposed on the outer wall of the directional cylinder 2 and evenly arranged along the circumferential direction; a plurality of second beads 22, each of the second beads 22 being correspondingly engaged in the second groove 21, and the second beads 22 in the second groove 21 being able to rotate relative to the second groove 21.

[0055] Specifically, the multiple second grooves can be the same in shape and size, the multiple second beads are spherical in shape, and the material can be a non-toxic plastic of predetermined strength.

[0056] In some embodiments, the plurality of second beads includes a first group of beads, a second group of beads, a third group of beads, and a fourth group of beads. The first group of beads includes first and second beads spaced apart along the axis of the directional tube. The second group of beads includes third and fourth beads spaced apart along the axis of the directional tube. The third group of beads includes fifth and sixth beads spaced apart along the axis of the directional tube. The fourth group of beads includes seventh and eighth beads spaced apart along the axis of the directional tube. The first, third, fifth, and seventh beads are located on a first cross-section of the directional tube and are evenly arranged circumferentially. The second, fourth, sixth, and eighth beads are located on a second cross-section of the directional tube and are evenly arranged circumferentially. (See also...) Figures 5 to 7 As shown, Figure 5 A cross-sectional schematic diagram of the axial guide rail of the positioning cylinder provided in an embodiment of the present invention, wherein the inner wall of the positioning cylinder is provided with a first axial guide rail 41, a second axial guide rail 42, a third axial guide rail 43 and a fourth axial guide rail 44 in the axial direction; Figure 6 A cross-sectional schematic diagram of the circumferential guide rail of the positioning cylinder provided in an embodiment of the present invention. Figure 7The diagram shows a cross-sectional view of the circumferential guide rails of the positioning cylinder provided in an embodiment of the present invention. The inner wall of the positioning cylinder is provided with multiple circumferential guide rails along the circumferential direction. These multiple circumferential guide rails include a first circumferential guide rail 51 and a second circumferential guide rail 52. When the positioning cylinder is pushed into the positioning cylinder, the first set of beads can be pushed in along the first axial guide rail 41, the second set of beads can be pushed in along the second axial guide rail 42, the third set of beads can be pushed in along the third axial guide rail 43, and the fourth set of beads can be pushed in along the fourth axial guide rail 44. When the angle of the positioning cylinder is adjusted, the first, third, fifth, and seventh beads can rotate along the first circumferential guide rail 51; the second, fourth, sixth, and eighth beads can rotate along the second circumferential guide rail 52.

[0057] Specifically, the first axial guide rail 41, the second axial guide rail 42, the third axial guide rail 43, and the fourth axial guide rail 44 can be evenly distributed at 90-degree intervals along the axial direction of the inner wall of the positioning cylinder. Multiple circumferential guide rails arranged along the circumferential direction on the inner wall of the positioning cylinder correspond to multiple cross-sections, which are the cross-sections where the small beads are located on the outer wall of the positioning cylinder. These multiple cross-sections include a first cross-section and a second cross-section. Since the positioning cylinder and the directional cylinder are of equal length and the beads are distributed in the same way, after the directional cylinder is pushed into the positioning cylinder along the axial guide rails, the beads on the multiple cross-sections of the directional cylinder are perfectly aligned with the multiple circumferential guide rails of the positioning cylinder. For example, after the directional cylinder is pushed into the positioning cylinder along the axial guide rails, the first circumferential guide rail 51 is perfectly aligned with the beads on the first cross-section, and the second circumferential guide rail 52 is perfectly aligned with the beads on the second cross-section.

[0058] It is understood that the axial guide rail and the circumferential guide rail may be concave inward, and the width of the axial guide rail and the circumferential guide rail should be smaller than the outer contour of the bead when it is under no pressure; for example, it can be one millimeter smaller than the diameter of the bead. In this way, after the directional cylinder is rotated to a predetermined angle, there will be a certain amount of resistance, so that the directional cylinder will not rotate on its own.

[0059] In some embodiments, the directional cylinder may further include a second elastic member disposed within the second groove 21 and at least partially below the second bead 22, for allowing the second bead 22 to move radially within the directional cylinder 2. The second elastic member allows the second bead to contract according to pressure changes, enabling the directional cylinder to be smoothly pushed into the borehole.

[0060] In some embodiments, the second groove 21 may be a hemispherical groove; the number of the second grooves 21 may be four. The four first grooves are evenly distributed along the circumference of the directional cylinder.

[0061] It is understandable that each second groove 21 contains a second bead 22, and the number of second grooves 21 can be two, three, or more than four.

[0062] To place the directional tube and shaped charge in the center of the borehole when the borehole is deep, refer to... Figure 8 As shown, Figure 8 The schematic cross-sectional view of the positioning cylinder provided in the embodiments of the present invention shows that in some embodiments, the positioning cylinder 1 may include multiple positioning segments; the multiple positioning segments include a first positioning segment and a second positioning segment; the first positioning segment includes a first positioning body, and a first connecting portion is provided at a first end of the first positioning body; the second positioning segment includes a second positioning body, and a second connecting portion is provided at a second end of the second positioning body; the first connecting portion and the second connecting portion are connected. Multiple positioning segments constitute the positioning cylinder 1, which enables the placement of a shaped charge at the center of the borehole when the borehole is deep. The positioning segments are annular structures, and multiple positioning segments can be connected together by the connecting portions.

[0063] Specifically, the positioning cylinder and the directional cylinder can be made of the same material. Multiple positioning segments form the positioning cylinder 1, which has multiple first beads 12. Multiple directional segments form the directional cylinder 2, which has multiple second beads 22. The materials of the multiple first beads, the multiple second beads, the positioning bodies of the multiple positioning segments, and the directional bodies of the multiple directional segments can be non-toxic plastics with a predetermined strength.

[0064] It is understood that the positioning cylinder can be formed by splicing together multiple positioning segments of different lengths, and the lengths of the positioning segments can include 0.4 meters, 0.5 meters, and 0.6 meters; the length of the directional segment of the directional cylinder is the same as the length of the positioning segment of the positioning cylinder. Similarly, the directional cylinder can also be formed by splicing together multiple directional segments of different lengths, and the lengths of the directional segments can include 0.4 meters, 0.5 meters, and 0.6 meters.

[0065] It is understandable that when assembling multiple positioning segments, it is necessary to ensure that the axial guide rails of the multiple positioning segments are aligned. In this way, when pushing the directional cylinder into the positioning cylinder, the beads distributed along the axial direction of the directional cylinder can be aligned with the axial guide rails of the multiple positioning segments first. Then, the angle of the directional cylinder can be adjusted uniformly, so that the beads distributed in the circumferential direction of the directional cylinder rotate along the circumferential guide rail of the positioning cylinder to adjust the angle.

[0066] In some embodiments, the first connecting part can be a first annular body with an external thread on its outer edge; the second connecting part can be a second annular body with an internal thread on its inner edge; and the external thread is screwed onto the internal thread.

[0067] In some embodiments, the thickness of the first annular body can be half the thickness of the middle position of the first positioning body; the thickness of the second annular body can be half the thickness of the middle position of the second positioning body.

[0068] Specifically, the thickness of the middle position of the positioning cylinder can be two millimeters, and the thickness of the first annular body can be one millimeter.

[0069] It is understood that the thicknesses of the first annular body and the second annular body can have various values. For example, the thickness of the first annular body can be set to be greater than the thickness of the second annular body, or the thickness of the first annular body can be set to be less than the thickness of the second annular body.

[0070] Specifically, each positioning body can have connecting parts at both ends. These connecting parts can be threaded (13), and are all annular. The outer edge of one connecting part has an external thread, and the inner edge of the other connecting part has an internal thread. The external thread fits onto the internal thread, thereby connecting multiple positioning segments. The tightening direction of the threads in each positioning segment is consistent, and the number of thread turns can be greater than or equal to three.

[0071] Furthermore, when adjusting the angle by rotating the angle gauge, the angle gauge can be rotated only in the direction of tightening the thread to ensure the continuity of the overall blasting direction.

[0072] Furthermore, in addition to being connected by internal and external threads, the connection of the connecting part can also be set to be connected by mortise and tenon, magnetic attraction, and slot.

[0073] Similarly, the directional tube can also be set to multiple segments; see [link / reference]. Figure 9 As shown, Figure 9This is a cross-sectional schematic diagram of a directional tube provided in an embodiment of the present invention. To achieve precise blasting effects in deep boreholes, in some embodiments, the directional tube 2 may include multiple directional segments. These multiple directional segments include a first directional segment and a second directional segment. The first directional segment includes a first directional body, with a third connecting portion at a first end. The second directional segment includes a second directional body, with a fourth connecting portion at a second end. The third connecting portion and the fourth connecting portion are connected. Multiple directional segments forming the directional tube 2 can ensure the blasting direction of the shaped charge in the same borehole is guaranteed even in deep boreholes, thus ensuring the consistency of the blasting direction of the preceding and following charges. The directional segments are annular structures, and multiple directional segments can be connected by connecting portions.

[0074] In some embodiments, the third connecting part can be a third annular body with an external thread on its outer edge; the fourth connecting part can be a fourth annular body with an internal thread on its inner edge; and the external thread is screwed onto the internal thread.

[0075] In some embodiments, the thickness of the third annular body can be half the thickness of the first directional body at its midpoint; the thickness of the fourth annular body can be half the thickness of the second directional body at its midpoint.

[0076] Specifically, the thickness of the directional cylinder at its center can be two millimeters.

[0077] It is understood that the thickness of the third annular body and the fourth annular body can have various values. For example, the thickness of the third annular body can be set to be greater than the thickness of the fourth annular body, or the thickness of the third annular body can be set to be less than the thickness of the fourth annular body.

[0078] Specifically, each directional body has connecting parts at both ends. These connecting parts can be threaded (23°) and are all annular. The outer edge of one connecting part has an external thread, and the inner edge of the other connecting part has an internal thread. The external thread fits onto the internal thread, thereby connecting multiple directional segments. The tightening direction of the threads in each directional segment is consistent, and the number of thread turns can be greater than or equal to three.

[0079] Furthermore, when adjusting the angle by rotating the angle gauge, the angle gauge can be rotated only in the direction of tightening the thread to ensure the continuity of the overall blasting direction.

[0080] Furthermore, in addition to being connected by internal and external threads, the connection of the connecting part can also be set to be connected by mortise and tenon, magnetic attraction, and slot.

[0081] In some embodiments, a reference line 24 is provided on the outer cylinder wall side in the axial direction of each directional segment, and the reference line 24 on each of the plurality of directional segments is on a straight line. Setting the reference line can ensure the accurate connection of each directional segment.

[0082] It is understood that the color of the reference line 24 can be red, yellow, blue, or other colors.

[0083] In some embodiments, the fixing part is a wedge-shaped protrusion; the number of wedge-shaped protrusions is multiple; at least a portion of the multiple wedge-shaped protrusions corresponds to the position of the cut slit in the energy-concentrating drug pack.

[0084] It is understandable that the number of wedge-shaped protrusions in the fixing part can be set according to the cutting situation of the shaped charge pack. For example, when the number of cuttings in the shaped charge pack is two, two wedge-shaped protrusions can be set at the 0-degree and 180-degree positions; when the number of cuttings in the shaped charge pack is three, three wedge-shaped protrusions can be set at the 0-degree, 90-degree, and 180-degree positions. In addition, multiple shaped charge packs can simultaneously use the wedge-shaped protrusions of a single directional segment on the directional cylinder. When placing multiple shaped charge packs, it must be ensured that the cuttings of the shaped charge packs between adjacent directional segments are aligned.

[0085] In some embodiments, the angle marker includes multiple marking lines evenly arranged along the circumference, with the included angle between two adjacent marking lines being five degrees; the multiple marking lines include four first marking lines spaced ninety degrees apart from each other, and the color of the first marking lines is a predetermined color.

[0086] It is understood that the first marking line can be red, yellow, orange, white, etc., while the other marking lines can be black.

[0087] The directional blasting device for shaped charge provided in this invention includes a positioning cylinder that can be installed in a borehole to determine the position of the directional cylinder and the shaped charge at the center of the borehole; the directional cylinder can be installed inside the inner cylinder of the positioning cylinder; a fixing part is provided on the inner wall of the directional cylinder for fixing the shaped charge; an angle reference mark is provided on the positioning cylinder; angle markers are provided at both ends of the directional cylinder; the angle markers are used to align the angle markers with the angle reference mark after the directional cylinder is pushed into the positioning cylinder, adjusting the angle of the directional cylinder to determine the blasting direction; or, an angle marker is provided on the positioning cylinder; an angle reference mark is provided on the directional cylinder; the angle reference mark is used to align the angle markers with the angle reference mark after the directional cylinder is pushed into the positioning cylinder, adjusting the angle of the directional cylinder to determine the blasting direction. Because the positioning cylinder can position the shaped charge at the center of the borehole, and by adjusting the angle of the positioning cylinder in conjunction with the angle marker and angle reference mark, the blasting direction of the shaped charge can be determined, thereby controlling the blasting direction of the charge, achieving precise blasting shape, improving the construction speed and quality of blasting boreholes, and improving the blasting rock breaking effect.

[0088] Example 2

[0089] Corresponding to the directional detonation device for shaped charge provided in the aforementioned embodiments, Figure 10 A flowchart illustrating the directional blasting method for shaped charge explosives provided in an embodiment of the present invention is shown below. Figure 10 As shown, the method includes the ability to:

[0090] S1: Push the positioning cylinder 1 into the blast hole.

[0091] In some embodiments, the positioning cylinder 1 includes a plurality of positioning segments; before pushing the positioning cylinder 1 into the borehole, the method further includes: assembling the plurality of positioning segments; the assembly of the plurality of positioning segments includes: determining the required number of positioning segments according to the number of shaped charge packs, and connecting each positioning segment through a connecting portion of the positioning segments.

[0092] Specifically, before assembling the multiple positioning sections, when the drilling operation begins, pre-loading work is carried out. First, check whether the multiple first beads on the outside of the positioning cylinder are working properly, then check whether the multiple second beads on the outside of the directional cylinder 2 are working properly, and check whether the wedge-shaped protrusion of the directional cylinder 2 is damaged.

[0093] In some embodiments, the directional blasting method for shaped charge explosives includes the following: a first axial guide rail, a second axial guide rail, a third axial guide rail, and a fourth axial guide rail are arranged on the inner wall of the directional cylinder along the axial direction of the directional cylinder; a first circumferential guide rail and a second circumferential guide rail are arranged on the inner wall of the directional cylinder in the circumferential direction; pushing the directional cylinder containing the shaped charge explosive into the positioning cylinder includes: aligning the first set of beads of the directional cylinder with the first axial guide rail of the positioning cylinder, aligning the second set of beads of the directional cylinder with the second axial guide rail of the positioning cylinder, and aligning the third set of beads of the directional cylinder with the first axial guide rail of the positioning cylinder. The first set of beads is aligned with the third axis guide rail of the positioning cylinder, and the fourth set of beads of the positioning cylinder is aligned with the fourth axis guide rail of the positioning cylinder. The positioning cylinder is pushed so that the first set of beads of the positioning cylinder rolls along the first axis guide rail of the positioning cylinder, the second set of beads of the positioning cylinder rolls along the second axis guide rail of the positioning cylinder, the third set of beads of the positioning cylinder rolls along the third axis guide rail of the positioning cylinder, and the fourth set of beads of the positioning cylinder rolls along the fourth axis guide rail of the positioning cylinder, thus pushing the positioning cylinder containing the energy-concentrating explosive pack into the positioning cylinder; wherein, the first set of beads includes... The first and second beads are spaced apart along the axial direction of the outer wall of the directional cylinder. The second group of beads includes the third and fourth beads, which are also spaced apart along the axial direction of the outer wall of the directional cylinder. The third group of beads includes the fifth and sixth beads, which are also spaced apart along the axial direction of the outer wall of the directional cylinder. The fourth group of beads includes the seventh and eighth beads, which are also spaced apart along the axial direction of the outer wall of the directional cylinder. The first, third, fifth, and seventh beads are located on the first cross-section of the directional cylinder and are evenly arranged circumferentially. The second, fourth, sixth, and eighth beads are located on the second cross-section of the directional cylinder. The beads are evenly arranged in a circumferential direction on the cross-section. Rotating the directional cylinder includes: when the first, third, fifth, and seventh beads are opposite to the first circumferential guide rail, and the second, fourth, sixth, and eighth beads are opposite to the second circumferential guide rail, rotating the directional cylinder so that the first, third, fifth, and seventh beads roll along the first circumferential guide rail; and the second, fourth, sixth, and eighth beads roll along the second circumferential guide rail.

[0094] It is understood that multiple circumferential guide rails are provided on the inner wall of the directional cylinder along the circumferential direction, and the multiple circumferential guide rails include a first circumferential guide rail and a second circumferential guide rail.

[0095] S2: Push the condensing medicine pack into the directional cylinder 2, and fix the condensing medicine pack with the fixing part of the directional cylinder 2.

[0096] In some embodiments, the directional cylinder includes multiple directional segments; before pushing the shaped charge into the directional cylinder, the method further includes: assembling multiple directional segments; assembling multiple directional segments includes: determining the required number of directional segments according to the number of shaped charge packets, and connecting each directional segment through a connecting portion of the directional segments.

[0097] In some embodiments, connecting each of the directional segments via the connecting portion of the directional segments includes: connecting each of the directional segments via the connecting portion of the directional segments, and aligning the reference line 24 on each of the plurality of directional segments in a straight line.

[0098] In some implementations, the fixing part is a wedge-shaped protrusion; fixing the shaped charge with the fixing part of the directional tube includes: using at least a portion of the protrusions of the plurality of wedge-shaped protrusions to wedge the slit of the shaped charge to fix the shaped charge.

[0099] S3: Push the directional cylinder 2 containing the energy-concentrating drug pack into the positioning cylinder 1.

[0100] S4: Rotate the directional cylinder 2 and adjust its angle according to the angle mark on the directional cylinder 2 and the angle reference mark on the positioning cylinder 1 to determine the blasting direction; or, rotate the directional cylinder and adjust its angle according to the angle reference mark on the directional cylinder and the angle mark on the positioning cylinder to determine the blasting direction.

[0101] It is understood that when the directional cylinder is rotated, the entire directional cylinder is rotated.

[0102] The directional blasting method for shaped charge explosives provided in this invention involves: pushing a positioning cylinder into the borehole; pushing the shaped charge explosive into the positioning cylinder and fixing the shaped charge explosive with the fixing part of the positioning cylinder; pushing the positioning cylinder 2 containing the shaped charge explosive into the positioning cylinder 1; rotating the positioning cylinder 2 and adjusting its angle according to the angle mark on the positioning cylinder and the angle reference mark on the positioning cylinder to determine the blasting direction; or rotating the positioning cylinder and adjusting its angle according to the angle reference mark on the positioning cylinder and the angle mark on the positioning cylinder to determine the blasting direction. Because the positioning cylinder ensures that the shaped charge explosive is positioned at the center of the borehole, and because the angle mark and angle reference mark are used in conjunction to adjust the angle of the positioning cylinder, the blasting direction of the shaped charge explosive can be determined, thus controlling the blasting direction and achieving precise blasting shape, improving the construction speed and quality of blasting boreholes, and enhancing the rock-breaking effect of blasting.

[0103] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0104] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A directional detonation device for shaped charge explosives, characterized in that, include: A positioning cylinder is used to be installed in the borehole to determine the position of the directional cylinder and the shaped charge at the center of the borehole. A directional cylinder is disposed within the inner cylinder of the positioning cylinder; A fixing part is provided on the inner wall of the directional cylinder for fixing the energy-concentrating medicine pack; the directional cylinder also includes: a plurality of second grooves, which are provided on the outer wall of the directional cylinder and are evenly arranged along the circumferential direction; a plurality of second beads, each second bead being correspondingly locked in a second groove, and the second bead in the second groove can rotate relative to the second groove. The plurality of second beads includes a first group of beads, a second group of beads, a third group of beads, and a fourth group of beads. The first group of beads includes a first bead and a second bead spaced apart along the axis of the directional tube. The second group of beads includes a third bead and a fourth bead spaced apart along the axis of the directional tube. The third group of beads includes a fifth bead and a sixth bead spaced apart along the axis of the directional tube. The fourth group of beads includes a seventh bead and an eighth bead spaced apart along the axis of the directional tube. The first, third, fifth, and seventh beads are located on the first cross-section of the directional tube and are evenly arranged along the circumferential direction. The second, fourth, sixth, and eighth beads are located on the second cross-section of the directional tube and are evenly arranged along the circumferential direction. The inner wall of the positioning cylinder is provided with a first axial guide rail, a second axial guide rail, a third axial guide rail and a fourth axial guide rail along the axial direction; the inner wall of the positioning cylinder is provided with a plurality of circumferential guide rails along the circumferential direction, the plurality of circumferential guide rails including the first circumferential guide rail and the second circumferential guide rail; When the directional cylinder is pushed into the positioning cylinder, the first group of beads can be pushed in along the first axial guide rail, the second group of beads can be pushed in along the second axial guide rail, the third group of beads can be pushed in along the third axial guide rail, and the fourth group of beads can be pushed in along the fourth axial guide rail. When adjusting the angle of the directional tube, the first, third, fifth, and seventh beads can rotate along the first circumferential guide rail; the second, fourth, sixth, and eighth beads can rotate along the second circumferential guide rail. An angle reference mark is provided on the positioning cylinder; angle markers are provided at both ends of the directional cylinder; the angle markers are used to align the angle markers with the angle reference mark after the directional cylinder is pushed into the positioning cylinder, thereby adjusting the angle of the directional cylinder to determine the blasting direction; or, An angle mark is provided on the positioning cylinder; an angle reference mark is provided on the directional cylinder; the angle reference mark is used to align the angle mark with the angle reference mark after the directional cylinder is pushed into the positioning cylinder, thereby adjusting the angle of the directional cylinder to determine the blasting direction.

2. The directional detonation device for shaped charge according to claim 1, characterized in that, The positioning cylinder also includes: Multiple first grooves are provided on the outer wall of the positioning cylinder and are evenly arranged along the circumferential direction; Multiple first beads are provided, each first bead being fitted into the first groove in a one-to-one correspondence, and the first bead in the first groove can rotate relative to the first groove.

3. The directional detonation device for shaped charge according to claim 2, characterized in that, The positioning cylinder further includes a first elastic element, which is disposed in the first groove and at least partially below the first bead, for making the first bead movable in the radial direction of the positioning cylinder.

4. The directional detonation device for shaped charge according to claim 2, characterized in that, The first groove is a hemispherical groove; there are four first grooves.

5. The directional detonation device for shaped charge according to claim 1, characterized in that, The positioning cylinder includes multiple positioning segments; the multiple positioning segments include a first positioning segment and a second positioning segment. The first positioning segment includes a first positioning body, and a first connecting part is provided at a first end of the first positioning body; the second positioning segment includes a second positioning body, and a second connecting part is provided at a second end of the second positioning body. The first connecting part and the second connecting part are connected.

6. The directional detonation device for shaped charge according to claim 5, characterized in that, The first connecting part is a first annular body, and an external thread is provided on the outer edge of the first annular body; The second connecting part is a second annular body, and an internal thread is provided on the inner edge of the second annular body; The external thread is screwed onto the internal thread.

7. The directional detonation device for shaped charge according to claim 6, characterized in that, The thickness of the first annular body is half the thickness of the middle position of the first positioning body; the thickness of the second annular body is half the thickness of the middle position of the second positioning body.

8. The directional detonation device for shaped charge according to claim 1, characterized in that, The directional cylinder further includes a second elastic element, which is disposed in the second groove and is at least partially located below the second bead, for making the second bead movable in the radial direction of the directional cylinder.

9. The directional detonation device for shaped charge according to claim 1, characterized in that, The second groove is a hemispherical groove; there are four of the second grooves.

10. The directional detonation device for shaped charge according to claim 1, characterized in that, The directional cylinder includes multiple directional segments; the multiple directional segments include a first directional segment and a second directional segment; The first directional segment includes a first directional body, and a third connecting portion is provided at a first end of the first directional body; the second directional segment includes a second directional body, and a fourth connecting portion is provided at a second end of the second directional body. The third connecting part and the fourth connecting part are connected.

11. The directional detonation device for shaped charge according to claim 10, characterized in that, The third connecting part is a third annular body, and an external thread is provided on the outer edge of the third annular body; The fourth connecting part is a fourth annular body, and an internal thread is provided on the inner edge of the fourth annular body; The external thread is screwed onto the internal thread.

12. The directional detonation device for shaped charge according to claim 11, characterized in that, The thickness of the third annular body is half the thickness of the middle position of the first directional body; the thickness of the fourth annular body is half the thickness of the middle position of the second directional body.

13. The directional detonation device for shaped charge according to claim 10, characterized in that, Each directional section has a reference line on the outer wall side in the axial direction, and the reference lines on each of the plurality of directional sections are on a straight line.

14. The directional detonation device for shaped charge according to claim 1, characterized in that, The fixing part is a wedge-shaped protrusion; there are multiple wedge-shaped protrusions; at least a portion of the multiple wedge-shaped protrusions correspond to the position of the cut slit in the energy-concentrating drug pack.

15. The directional detonation device for shaped charge according to claim 1, characterized in that, The angle marker includes multiple marking lines evenly arranged along the circumference, with the included angle between two adjacent marking lines being five degrees; the multiple marking lines include four first marking lines spaced ninety degrees apart from each other, and the color of the first marking lines is a predetermined color.

16. A method for directional blasting of shaped charge explosives, characterized in that, The method applied to the directional detonation device for shaped charge as described in claim 1 includes: Push the positioning cylinder into the blast hole; The condensing medicine pack is pushed into the directional cylinder, and the condensing medicine pack is fixed by the fixing part of the directional cylinder; The directional cylinder containing the energy-concentrating drug pack is pushed into the positioning cylinder; Rotate the directional cylinder and adjust its angle according to the angle mark on the directional cylinder and the angle reference mark on the positioning cylinder to determine the blasting direction; or, Rotate the directional cylinder and adjust its angle according to the angle reference mark on the directional cylinder and the angle mark on the positioning cylinder to determine the blasting direction.

17. The method for directional blasting of shaped charge explosives according to claim 16, characterized in that, On the inner wall of the positioning cylinder, a first axial guide rail, a second axial guide rail, a third axial guide rail, and a fourth axial guide rail are provided along the axial direction of the positioning cylinder; on the inner wall of the positioning cylinder, a first circumferential guide rail and a second circumferential guide rail are provided along the circumferential direction. The step of pushing the directional cylinder containing the shaped charge into the positioning cylinder includes: Align the first set of beads of the directional tube with the first axial guide rail of the positioning tube, align the second set of beads of the directional tube with the second axial guide rail of the positioning tube, align the third set of beads of the directional tube with the third axial guide rail of the positioning tube, and align the fourth set of beads of the directional tube with the fourth axial guide rail of the positioning tube. Push the directional tube so that the first set of beads of the directional tube rolls along the first axial guide rail of the positioning tube, the second set of beads of the directional tube rolls along the second axial guide rail of the positioning tube, the third set of beads of the directional tube rolls along the third axial guide rail of the positioning tube, and the fourth set of beads of the directional tube rolls along the fourth axial guide rail of the positioning tube, so that the directional tube containing the energy-concentrating drug pack is pushed into the positioning tube. The first group of beads includes a first bead and a second bead spaced apart along the axial direction of the outer wall of the directional cylinder; the second group of beads includes a third bead and a fourth bead spaced apart along the axial direction of the outer wall of the directional cylinder; the third group of beads includes a fifth bead and a sixth bead spaced apart along the axial direction of the outer wall of the directional cylinder; and the fourth group of beads includes a seventh bead and an eighth bead spaced apart along the axial direction of the outer wall of the directional cylinder. The first, third, fifth, and seventh beads are located on the first cross-section of the directional cylinder and are evenly arranged along the circumferential direction; the second, fourth, sixth, and eighth beads are located on the second cross-section of the directional cylinder and are evenly arranged along the circumferential direction. The rotation of the directional cylinder includes: When the first, third, fifth, and seventh beads are opposite to the first circumferential guide rail, and the second, fourth, sixth, and eighth beads are opposite to the second circumferential guide rail, the directional cylinder is rotated so that the first, third, fifth, and seventh beads roll along the first circumferential guide rail; and the second, fourth, sixth, and eighth beads roll along the second circumferential guide rail.

18. The method for directional blasting of shaped charge explosives according to claim 16, characterized in that, The positioning cylinder includes multiple positioning sections; Before pushing the positioning cylinder into the borehole, the method further includes: Assemble multiple positioning segments; The assembly of multiple positioning segments includes: The required number of positioning segments is determined according to the number of energy-concentrating drug packs, and each positioning segment is connected through the connecting part of the positioning segment.

19. The method for directional blasting of shaped charge explosives according to claim 16, characterized in that, The directional tube includes multiple directional sections; Before pushing the shaped charge into the directional cylinder, the method further includes: Assemble multiple directional segments; The assembly of multiple oriented segments includes: The required number of directional segments is determined according to the number of energy-concentrating drug packs, and each directional segment is connected through the connecting part of the directional segment.

20. The method for directional blasting of shaped charge explosives according to claim 19, characterized in that, The connection of each directional segment via the connecting portion of the directional segment includes: Each of the directional segments is connected by a connecting part, and the reference lines on each of the multiple directional segments are aligned in a straight line.

21. The method for directional blasting of shaped charge explosives according to claim 16, characterized in that, The fixing part is a wedge-shaped protrusion; fixing the energy-concentrating drug pack with the fixing part of the directional cylinder includes: At least a portion of the wedge-shaped protrusions are used to engage the slits in the shaped charge pack to secure it.

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